Vulcanizer.



A; MAGRI @L A. y. GmFFETH. y

vuLcANlzER. APPLICATION FILED OCT. 26. |914.

1,156,793.v Patented 00u12, 1915.

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UMTED srarns PATENT OFFICE- ABEL MAGRI AND ARTHUR V. GRYFFETH, 0F FORT'WASHINGTON`,` NEW-YORK.

VULCANIZER.

zen of Switzerland, and residing at Port lVashington, in the county ofNassau and State of New York, and ARTHUR V. Giur- FETH, a citizen of theUnited States, residing at Port lVashington, in the county of Nassau andState of New York, have invented certain new and useful Improvements inVulcanizers; and we do declare the following to be a full, clear, andexact description of fthe invention, such as will enable others skilledin the art to. which it appertains to make and use the same. A

Our inventionrelates to improvements in vulcanizing devices and has forits main object to provide an extremely simple device having a fire potwhich performs-not only the function of heating the vulcanizing materialand the tube but also acts as one niember of a clamp for securing thetube in position to be repaired.'

In carrying out the above end, a further object is to provide structurewhich will be expanded by the heat vgenerated from the tire pot and tolocate this structure at such av point as to cause the expansion thereofto force the combined clamp member and lire pot into binding contactwith the article be; ing repaired. i l

.Yet another object is to provide avnurn'- ber of interchangeable lire.pots of different sizes, thereby allowing small patches to be appliedwithout the necessity of heating a comparatively large area of the tireand also-- allowing a comparatively large patch Atobe applied. v

With the above and minor objects in view,

. the invention resides in certain novel features of construction aridcombination here- 1n described and claimed and shown in the drawingswherein;

Figure 1 is \a side elevation of our improved vulcanizer showing acomparatively small fire pot clamped in active position upon a tube;Fig. 2, is a transverse'section taken on the line 2-2 of Fig. l; Fig. 3is a top plan View pot, and Fig, 4 is a vertical transverse section asseen on the line 3`-3 of Fig. 3.

' In the accompanying drawings, the numeral l designates a suitablyconstructed base block which is designed to be clamped in a horizontalposition upon a suitable horizontal board B which may be the top of aWork bench, a table, or the running board Specification of LettersPatent.

struction heilig of a comparatively large ilre I Patented oet. i2, 1915.

' Applicationfled Octo-berI 26, 1914. Serial No. 868,710. f

of an automobile, a clamp C, of ordinary conprovided vfor this purpose.Rising from the base block l and secured thereto by a bolt or screw 2,is an inverted L-shaped bracket 3 whose horizontal arm is provided withan integral nutI ceivesr-a crank operated screw 5. y

Designed kto be .positioned upon a tube T, is a comparatively small firepot 6 and a relatively large pot 6", the pot 6 being here shown ascup-shaped and as having an uprightpost 7 rising from its center, theupper end of said post being provided with av recess 8 designed toreceive the lower end of the screw 5, while the lower end of said post 7is enlarged as seen at 9 whereby to provide an indicator for determiningthe proper amount of liquid fuel to be placed within the pot. The firepot 6" is provided with an upright central post 7 having a recess 8 inits upper end, said post being webs 10 which radiate therefrom and whichrise from the bottoni of said pot. These ribs not only act as bracingribs, but coact with a plurality of upright pins or posts 11 to conductheat to the bottom of the pot. The posts 11 may be enlarged at theirlower ends as indicated at 9 for determining the proper amount offuel'to be employed. v

Vith the parts as above described, the' tube T is provided with theusual patch P to be vulcanized thereto, one of the fire pots ispositioned upon the patch as clearly'seen in Figs. l and 2 and the screw5 is moved downwardly until its lower end seats within the recess formedinthe central post of th fire pot,vsaid pot being then partially filledl which rebraced by a plurality of with fuel which is ignited. It willtherefore i be seen that said pot acts not only as heating means forvulcanizing the patch P to the tube T, but acts as one section of theclamp, the othersection being here shown in the form of the base blockl. As the b urning'fuel within lthe re'pot heats the same and melts thepatch P, the screw 5 and post 7 or 7, as the case may be, are eX-panded, this expansion now forcing the com* bined fire pot andv clampingmember into for ible contact with the tube and the patch thereon. It hasbeen found, by actual experience., that the device operating as -abo'vedescribed, will "ulcanize more perfectly than the ordinary proper am intof pressure is exerted upon the heated patclnit being understood thatsaid patch Hattens out as it is heated and typeof vulcanizers since the'force the same into contact ,Vfllhisfincreased pressure, appliedabsolutely automatically-,and to the is necessary, in' order to With thetube. it Will be noted, is

that more pressure properextent.

Another important feature, is the fact that no unnecessary material 1sheated, but only that being patched, and that the pressure' on theheated patch gradually increases as. A the temperature of the patchrises, ,thereby assuring the greatest amount of pressure at the time thepatch is in the most molten state, the effect being a perfect patch. y

one end' thereof to a horizontal support, .an

Copies of this patent may be obtained for inverted L shaped brackethaving `at its lower end a foot secured to the upper side of the baseplate at the intermediate portion thereof, a rigid nut carried by theother end of said bracket and having an upright axis,

a ire pot between the nut and the base plate having a central postprovided in its upper end with a cavity, anda clamping' screw threadedthrough the nut and having its lower end received by theaforesaidcavity.

ln testimony whereof we have hereunto set our hands in presence of twosubscribing witnesses.

ABEL MAGRI.

yWitnesses: JENNY MAGRI,

ELIZABETH GRIFFETH.

ve cents each, by addressing the Commissioner of Eatents,

Washington, D. G.

, ARTHUR V. GRlFFETH. l

